316 



THE BOTTOM OF THE SEA. 



of December, 1719, and an island was formed between 

 Terceira and St. Michael. At first it was of sufficient 

 elevation to be seen seven or eight leagues out at sea ; 



Fig. 61. — Submarine Eruption at the Azores. 



it vomited incessantly a thick column of smoke, cin- 

 ders, and pumice ; a stream of molten lava flowed 

 down its sides, and the sea became very hot in its 

 neighbourhood. Tiie height of the island diminished 

 rapidly; after existing two years, in 1722 it had 



